CN217788838U - Plug with improved structure - Google Patents

Abstract

The utility model provides a plug, include: an insulated housing, an insulated wire and a pin; the pins are fixedly connected to one side of the insulating shell; the insulated wires extend into the insulated shell from the side surface of the insulated shell, which is far away from the pins, and are arranged along the extending direction of the pins; the insulated wire extending into the insulated shell is electrically connected with the pin; an operation boss is arranged on the side face, parallel to the extension direction of the pin, of the insulating shell, and the height direction of the operation boss is perpendicular to the extension direction of the pin. The plug is matched with a socket with an arc extinguish chamber, so that the breaking time of a switch of the socket is earlier than that of a conductive pin and a chuck on the socket, and the switch matching of the plug and the socket is effectively realized to control the breaking of a power supply.

Description

Plug with improved structure

Technical Field

The utility model relates to a technical field in low voltage apparatus field, concretely relates to plug.

Background

With the development of economy and the improvement of environmental awareness, the country continuously increases the input strength in the fields of clean energy such as photovoltaic energy, wind energy and the like in recent years. Therefore, in the near future, dc power distribution systems will be used in more and more actual production operation scenarios.

As is well known, the waveform of alternating current is a sinusoidal waveform, and zero points are passed every time one cycle passes. For the household plug, large electric arcs cannot be generated during normal plugging. Even if the load is large, the plug generates electric arcs in plugging, and the electric arcs can be automatically extinguished in the zero crossing point process of the circuit. However, direct current is different, and the direct current does not have a zero point, so that the whole circuit cannot extinguish electric arcs at zero crossing points like alternating current, and the problems that the electric arcs are difficult to extinguish and the service life of plugs is influenced by burning pins of the electric arcs in the actual production process exist in a direct current power distribution system.

With the widespread use of dc power distribution systems, various dc sockets are gradually emerging and equipped with an arc chute, but there is currently no plug on the market that mates with a socket having an arc chute.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that does not have the socket matched with plug with explosion chamber at present, the utility model provides a plug, include: an insulated housing, an insulated wire and a pin;

the pins are fixedly connected to one side of the insulating shell;

the insulated wires extend into the insulated shell from the side surface of the insulated shell, which is far away from the pins, and are arranged along the extending direction of the pins;

the insulated wire extending into the insulated shell is electrically connected with the pin;

an operation boss is arranged on the side face, parallel to the extending direction of the pin, of the insulating shell, and the height direction of the operation boss is perpendicular to the extending direction of the pin.

Preferably, the operating boss is arranged in a triangular structure and comprises two inclined planes and a sharp-angled top arranged at the joint of the two inclined planes.

Preferably, the top of the sharp corner is a circular arc surface.

Preferably, the operating boss is arranged in a trapezoidal structure and comprises two inclined planes and a plane which is arranged at the joint of the two inclined planes and is parallel to the insulating shell.

Preferably, the joint of the plane and the two inclined planes is an arc surface.

Preferably, the protective ring is sleeved outside the pin;

the protection ring is extended and arranged on the side face of the insulation shell.

Preferably, the height of the operation boss is 1-2.5mm.

Preferably, the height of the operation boss is 3-4.5mm.

Preferably, the height of the operating boss is 5-7mm.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a plug, include: an insulated housing, an insulated wire and a pin; the pins are fixedly connected to one side of the insulating shell; the insulated wires extend into the insulated shell from the side surface of the insulated shell, which is far away from the pins, and are arranged along the extending direction of the pins; the insulated wire extending into the insulated shell is electrically connected with the pin; an operation boss is arranged on the side face, parallel to the extending direction of the pin, of the insulating shell, and the height direction of the operation boss is perpendicular to the extending direction of the pin. The plug is matched with a socket with an arc extinguish chamber, so that the breaking time of a socket switch is earlier than that of a conductive pin and a chuck on the socket, and the breaking of a power supply is controlled by effectively realizing the switch matching of the plug and the socket.

Drawings

Fig. 1 is a schematic view of the overall structure of the plug of the present invention;

fig. 2 is a schematic top view of the plug of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic structural view of the plug of the present invention in which the top of the sharp corner of the operation boss is a rounded corner;

fig. 5 is a schematic structural view of the plug of the present invention, in which the operation boss is a trapezoidal structure;

fig. 6 is a schematic structural view of the plug support leg side of the present invention;

fig. 7 is a schematic view of an external structure of the plug of the present invention plugged in the socket;

fig. 8 is a schematic view of the internal structure of the plug of the present invention, wherein the arm of the plug is not inserted into the socket;

fig. 9 is a schematic view of the internal structure of the plug with the arm portion inserted into the socket;

fig. 10 is a schematic view of the internal structure of the plug of the present invention with the arm-brace fully inserted into the socket.

10, a socket; 110. a chuck; 120. locking; 121. a lug; 123. a card slot; 124. a spring; 125. a first rotating shaft; 130. jumping and buckling; 131. a torsion spring; 132. a second rotating shaft; 133. a bump; 140. a rod; 20. a plug; 200. an insulating housing; 210. operating the boss; 211. the top of the sharp corner; 212. an upper inclined plane; 213. a lower inclined plane; 214. a plane; 220. a pin; 230. an insulated wire; 240. a guard ring.

Detailed Description

The utility model discloses a plug, the device make socket switch's breaking time be earlier than the breaking time of chuck on electrically conductive participating in and the socket, the switch cooperation of having effectively realized plug and socket is divided with the control power.

Examples

A plug 20, as shown in fig. 1 and 2, comprising: an insulating case 200, an insulated wire 230, and a pin 220; the pins 220 are fixedly connected to one side of the insulating housing 200; the insulated wires 230 extend into the insulating housing 200 from the side of the insulating housing 200 away from the pins 220 and are arranged along the extending direction of the pins 220; the insulated wire 230, which is inserted into the insulating case 200, is electrically connected to the pin 220; at least one operation boss 210 is disposed on a side surface of the insulation case 200 parallel to the extending direction of the pin 220, and the height direction of the operation boss 210 is perpendicular to the extending direction of the pin 220. The socket 10 is provided with at least one switch, the plug 220 is inserted into the inside of the socket 10 to energize the chuck 110, in this embodiment, the operating boss 210 drives the mechanism inside the socket 10 to directly or indirectly drive at least one switch inside the socket 10 to close or open, and the time for the switch to close or open is earlier than the time for the conductive plug 220 to be connected or disconnected with the chuck 110 inside the socket 10.

The insulating housing 200 is a hollow shell structure, and is made of insulating material.

The operation boss 210 may be arranged in a triangular structure, as shown in fig. 3, and is disposed on the insulation housing 200, and includes two inclined surfaces and a sharp top 211 disposed at the junction of the two inclined surfaces, wherein the inclined surface above the sharp top 211 is an upper inclined surface 212, and the inclined surface below the sharp top 211 is a lower inclined surface 213. The pointed tip 211 may be provided as a circular arc surface, as shown in FIG. 4. In addition, the operation boss 210 may be arranged in a trapezoidal structure, as shown in fig. 5, including two inclined surfaces and a flat surface 214 provided at the junction of the two inclined surfaces and parallel to the insulation housing 200. The joint of the plane 214 and the two inclined planes is set to be a circular arc surface. So that the relative movement between the lug 121 of the lock 120 of the socket 10 and the lug is smoother and the operation is more labor-saving. The connection mode of the operation boss 210 and the plug 20 is not limited, and the fixed connection between the operation boss 210 and the plug 20 can be realized, and the embodiment adopts the design of integrally forming the operation boss 210 and the insulating shell 200 of the plug 20, so that the space utilization is reasonable, the process is simple, and the cost is low.

The conventional socket 10 with mechanical life requirement can make the height of the operation boss 210 be 3-4.5mm, that is, the height of the operation boss 210 is 3-4.5mm higher than the surface of the plug 20, and such height requires a certain action space; if the requirement on the mechanical life is not too high, the height of the operation boss 210 can be 1-2.5mm, namely the height of the operation boss 210 is 1-2.5mm higher than the surface of the plug 20, so that the required action space is small, the operation is flexible, and the volume of the matched socket 10 can be reduced; if a higher mechanical life is desired, the height of the operating boss 210 can be 5-7mm, i.e. the height of the operating boss 210 is 5-7mm higher than the surface of the plug 20, which is more reliable, and of course, the volume of the socket 10 to be matched is also larger.

As shown in fig. 6, the pins 220 have a plate-shaped structure with a certain thickness, each pin 220 has a rectangular cross section, and three pins 220 are selected in this embodiment. The long sides of the cross sections of the pins 220 on the two sides are parallel to each other, meanwhile, the pins 220 on the two sides are symmetrically distributed along the central axis between the pins, and the long side of the pin 220 in the middle is perpendicular to the long sides of the pins 220 on the two sides, so that the pins are used for grounding protection. The pins 220 are soldered to the conductive core of the insulated wires 230 within the plug 20, with the insulated wires 230 extending from the side of the insulating housing 200 remote from the pins 220.

As shown in fig. 1, a protection ring 240 is sleeved outside the pin 220; the guard ring 240 is extended and disposed on the side of the insulation case 200. The guard ring 240 is integrally provided with the insulation case 200, and the operation boss 210 is provided on an outer side wall of the guard ring 240.

As shown in fig. 7 and 8, before the plug 20 is inserted, the lower inclined surface 213 of the operating boss 210 presses the lug 121 of the latch 120 in the socket 10, so that the lug 121 compresses the spring 124 and rotates counterclockwise along the first rotating shaft 125. As shown in fig. 9, the plug 20 continues to move downwards, the pointed top 211 of the operating boss 210 passes through the lug 121 of the latch 120, the latch 120 performs clockwise rotation reset along the first rotating shaft 125, and the plug 20 continues to move downwards, as shown in fig. 10, the insulating housing 200 of the plug 20 presses the jump buckle 130 of the socket 10, so that the jump buckle 130 rotates clockwise along the second rotating shaft 132, and compresses the torsion spring 131 to store energy until the lug 133 of the jump buckle 130 is clamped into the clamping groove 123 of the latch 120 for locking. At this time, the plug 20 continues to move downward, and the insulating housing 200 presses the switch driving lever 140 of the socket 10, and the switch is closed.

When the plug 20 is pulled out, the upper inclined surface 212 of the operating boss 210 presses the lug 121 of the latch 120 in the socket 10, so that the lug 121 compresses the spring 124 and rotates counterclockwise along the first rotating shaft 125, the lug 133 of the trip catch 130 is disengaged from the slot 123 of the latch 120, and under the action of the stored energy torsion spring 131, the trip catch 130 rotates counterclockwise rapidly, the switch driving rod 140 is driven, and the switch is disconnected rapidly.

The plug 20 is used in cooperation with the corresponding socket 10, so that burning loss of the pins 220 and the conductive chucks 110 caused by electric arc can be effectively reduced, and the service lives of the plug 20 and the socket 10 are prolonged.

The above description is only exemplary of the invention and is not intended to limit the invention, and any modifications, equivalent alterations, improvements and the like which are made within the spirit and principle of the invention are all included in the scope of the claims which are appended hereto.

Claims (9)

1. A plug, comprising: an insulating housing (200), an insulated wire (230), and a pin (220);

the pins (220) are fixedly connected to one side of the insulating shell (200);

the insulated wires (230) extend into the insulating shell (200) from the side of the insulating shell (200) away from the pins (220) and are arranged along the extending direction of the pins (220);

the insulated wire (230) extending into the insulating housing (200) is electrically connected with the pin (220);

an operation boss (210) is arranged on a side surface of the insulating shell (200) parallel to the extension direction of the pin (220), and the height direction of the operation boss (210) is perpendicular to the extension direction of the pin (220).

2. A plug according to claim 1, wherein the operating projections (210) are arranged in a triangular configuration comprising two angled surfaces and a pointed apex (211) provided at the junction of the two angled surfaces.

3. A plug according to claim 2, characterised in that the pointed tip (211) is provided as a circular arc.

4. A plug according to claim 1, wherein the operating projections (210) are arranged in a trapezoidal configuration comprising two inclined surfaces and a flat surface (214) parallel to the insulating housing (200) provided at the junction of the two inclined surfaces.

5. A plug according to claim 4, characterised in that the junction between the flat surface (214) and the two inclined surfaces is provided as a circular arc.

6. A plug according to claim 1, further comprising a protective ring (240) arranged to surround the pin (220);

the protection ring (240) is extended and arranged on the side surface of the insulation shell (200).

7. A plug according to claim 1, characterised in that the height of the operating projection (210) is 1-2.5mm.

8. A plug according to claim 1, characterised in that the height of the operating projection (210) is 3-4.5mm.

9. A plug according to claim 1, characterised in that the height of the operating projection (210) is 5-7mm.

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