CN209709229U

CN209709229U - Plug

Info

Publication number: CN209709229U
Application number: CN201920318369.5U
Authority: CN
Inventors: 何志国; 张仕森; 胡华安; 周永京; 方凯盛
Original assignee: Zhejiang Chint Building Electrics Co Ltd
Current assignee: Zhejiang Chint Building Electrics Co Ltd
Priority date: 2019-03-13
Filing date: 2019-03-13
Publication date: 2019-11-29
Anticipated expiration: 2029-03-13

Abstract

A kind of plug, it includes shell, copper bolt and connecting terminal, connecting terminal includes into the iron frame and terminal screw of frame shape, the threaded hole being threadedly engaged with terminal screw is equipped on the side wall of iron frame, one end of copper bolt reaches in iron frame to be cooperated with terminal screw, the other end of copper bolt stretches out shell and is used to cooperate with socket, on the basis of not increasing socket volume, it ensure that the resistivity of socket by copper bolt, iron frame can effectively improve the structural strength of connecting terminal simultaneously, it avoids being destroyed in wiring, especially terminal screw active force is excessive leads to threaded hole stripped thread, and it can be effectively reduced the cost of purchase production material.

Description

Plug

Technical field

The utility model relates to Low Voltage Electrical Apparatus, more particularly to a kind of plug.

Background technique

Plug is connected by realizing in insertion socket with power supply, and plug generally includes shell, connecting terminal and inserted sheet, inserted sheet One end connected by the conducting wire of connecting terminal and load, the other end of inserted sheet stretches out shell for being inserted into connection electricity in socket Source.Connecting terminal generally includes junction block and the terminal screw for fixing conducting wire, and terminal screw can be by the conducting wire pressure of load Tightly on inserted sheet, but since the volume of plug is usually all smaller, and connecting terminal and bolt are all made of copper usually to subtract Small electrical loss is very restricted the structural strength of connecting terminal and bolt, and terminal screw holds very much in fixed conducting wire Destructible connecting terminal and bolt, cause plug to damage.

Summary of the invention

The purpose of the utility model is to overcome the defects of the prior art, and it is simple, high reliablity slotting to provide a kind of structure Head.

To achieve the above object, the utility model adopts the technical scheme that

A kind of plug comprising shell, copper bolt and connecting terminal, connecting terminal include into the iron frame and wiring of frame shape Screw is equipped with the threaded hole being threadedly engaged with terminal screw on the side wall of iron frame, and one end of copper bolt reaches in iron frame Cooperate with terminal screw, the other end of copper bolt stretches out shell and is used to cooperate with socket.

Preferably, the shell includes the lower casing and upper casing being oppositely arranged, and is respectively equipped on the side wall of lower casing and upper casing Avoid copper bolt lower slot and upper slot, the two sides of copper bolt set there are two respectively with lower slot and upper slot limit cooperate Card slot, two card slots can snap into respectively in lower slot and upper slot, and two card slot two side walls is made to be against shell side respectively The two sides of wall.

Preferably, the connecting terminal is in saddle type.

Preferably, including the connecting terminal with two copper bolt one end fits respectively of two copper bolts and two, shell It is interior equipped with the position-limit mechanism cooperated with two connecting terminals, position-limit mechanism, which is equipped with to reach, limits cooperation between two connecting terminals Limited post, and the terminal screw of two connecting terminals is separately positioned on the side that two iron frames are located remotely from each other, two iron frames Frame side close to each other is against the two sides cooperation of limited post respectively.

Preferably, the position-limit mechanism include be oppositely arranged and be respectively fitted over two connecting terminal two sides lower limit seat and Upper limit seat is arranged in towards the side of lower limit seat in upper limit seat, the limited post, and is equipped with upper card in the side of limited post Button is equipped in the inside of lower limit seat side wall and is arranged with the lower buckle that is above clasped, two connecting terminals in lower limit Between position seat and upper limit seat, and the two sides of limited post are symmetricly set on, in two opposite sides of lower limit seat and upper limit seat The lower handle hole and upper handle hole of evacuation terminal screw are respectively equipped on wall, in lower limit seat and upper limit seat close to copper bolt one It is respectively equipped with the lower escape groove and upper escape groove of evacuation copper bolt on the side wall of side, is inserted in lower limit seat and upper limit seat far from copper Sell the lower wire slot and upper metallic channel that evacuation conducting wire is respectively equipped on the side wall of side.

Preferably, the shell includes the lower casing and upper casing being oppositely arranged, and is respectively equipped in lower casing and upper casing and lower limit Seat and upper limit seat lower baffle plate and overhead gage far from the limit cooperation of copper bolt side, and the roof inside of upper casing is equipped with and the upper limit Upper rib of the position seat far from the limit cooperation of lower limit seat side is equipped with lower limit seat in the inside bottom wall of lower casing far from upper limit The lower convex ribs of seat side limit cooperation.

Preferably, it is respectively equipped with heat release hole and lower heat release hole on the lower limit seat and the side wall of upper limit seat, it is upper to dissipate Hot hole is two and is oppositely arranged on the two sides of limited post.

Preferably, the iron frame integrated molding is bent, including the left plate and right side plate being oppositely arranged, Yi Jilian The bottom plate between left plate and right side plate one end is connect, is equipped with the lower roof plate being oppositely arranged with bottom plate in the other end of left plate, It is equipped with the upper plate for being layered in lower roof plate and closing far from bottom plate side in the other end of right side plate, is equipped on lower roof plate to upper plate The screw boss of side protrusion is equipped with the threaded hole being threadedly engaged with terminal screw in screw boss, is equipped on upper plate Avoid the escape port of screw boss.

Preferably, the side that the left plate and right side plate are connect with bottom plate is respectively equipped with escape port.

Preferably, it corresponds in side of the connecting terminal far from copper bolt in the upper casing or lower casing equipped with wire pressing device, crimping Device is equipped with tension disc, and the both ends of tension disc pass through line pressing bolt respectively and are fixedly connected with wire pressing device, set in the middle part of tension disc Live conductor slot.

The plug of the utility model ensure that the resistance of socket by copper bolt on the basis of not increasing socket volume Rate, while iron frame can effectively improve the structural strength of connecting terminal, avoid being destroyed in wiring, especially wiring spiral shell Active force is excessive leads to threaded hole stripped thread for nail, and can be effectively reduced the cost of purchase production material.In addition, the terminals Son is in saddle type, can more reliably fix conducting wire, effectively prevent wire dropping.In addition, being equipped with position-limit mechanism in shell, pass through Lower limit seat and upper limit seat cooperate with the two sides up and down of connecting terminal respectively, can not only pair of wire connection terminals carry out it is more reliable Limit, but also can pair of wire connection terminals protected.Further, since the volume of connecting terminal and copper bolt is smaller, filling Two connecting terminals of timing and two copper bolts can be first integrated with position-limit mechanism assembly, then be assembled to shell together again It is interior, it can reduce the difficulty of assembly, improve the efficiency of production and processing

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model embodiment plug；

Fig. 2 is the exploded view of the utility model embodiment plug；

Fig. 3 is the exploded view of the utility model embodiment connecting terminal；

Fig. 4 is the sectional view of the utility model embodiment plug；

Fig. 5 is another sectional view of the utility model embodiment plug.

Specific embodiment

Below in conjunction with the embodiment that attached drawing 1 to 5 provides, the specific embodiment party of the plug of the utility model is further illustrated Formula.The plug of the utility model is not limited to the following description.

As shown in Figure 1-3, the plug of the utility model includes shell, copper bolt 3 and connecting terminal 4, connecting terminal 4 includes At the iron frame 41 and terminal screw 42 of frame shape, the screw thread being threadedly engaged with terminal screw 42 is equipped on the side wall of iron frame 41 Hole 43, one end of copper bolt 3 reaches in iron frame 41 to be cooperated with terminal screw 42, and the other end of copper bolt 3 stretches out shell and is used for Cooperate with socket, the end of conducting wire reaches between the copper bolt 3 in iron frame 41 and terminal screw 42, screws terminal screw 42 Conducting wire is fixed on to the side of copper bolt 3.

The plug of the utility model ensure that the resistance of socket by copper bolt 3 on the basis of not increasing socket volume Rate, while iron frame 41 can effectively improve the structural strength of connecting terminal 4, avoid being destroyed in wiring, especially connect 42 active force of line screw is excessive to lead to 43 stripped thread of threaded hole, and can be effectively reduced the cost of purchase production material.

Further, the connecting terminal 4 is in saddle type, can more reliably fix conducting wire, effectively prevent wire dropping.

Further, the shell includes the lower casing 1 and upper casing 2 being oppositely arranged, on the side wall of lower casing 1 and upper casing 2 respectively Lower slot 11 and upper slot 21 equipped with evacuation copper bolt 3, the two sides of copper bolt 3 set there are two respectively with lower slot 11 and upper The card slot 31 of the limit cooperation of slot 21, two card slots 31 can be snapped into respectively in lower slot 11 and upper slot 21, make two card slots The two sides that 31 two side walls are against housing sidewall respectively, which are realized, limits copper bolt 3.Divided by the way that card slot 31 is arranged on copper bolt 3 Do not cooperate with lower casing 1 and the limit of upper casing 2, does not need copper bolt 3 by the complicated technique and connecting terminal 4 such as welding and riveting Connection has the characteristics that simple process and at low cost.

A kind of specific embodiment as shown in Fig. 2-5, the plug of the present embodiment are two-wire plug, that is, include two copper bolts 3 and two connecting terminals 4 with two 3 one end fits of copper bolt respectively, it is equipped in shell and to cooperate with two connecting terminals 4 Position-limit mechanism, position-limit mechanism are equipped with and reach the limited post 51 for limiting cooperation between two connecting terminals 4, and two connecting terminals 4 terminal screw 42 is separately positioned on the side that two iron frames 41 are located remotely from each other, two sides close to each other of iron frame 41 It is against the two sides cooperation of limited post 51 respectively.By the way that two connecting terminals 4 to be symmetricly set on to the two sides of limited post 51, and two The side close to each other of iron frame 41 is against the two sides cooperation of limited post 51 respectively, can not only be reliably to two connecting terminals 4 limits, and have the characteristics that structure simply and limit reliable.

Further, the position-limit mechanism includes the lower limit seat for being oppositely arranged and being respectively fitted over two 4 two sides of connecting terminal 52 and upper limit seat 53, the limited post 51 upper limit seat 53 is set towards the side of lower limit seat 52, and in limited post 51 Side be equipped with it is upper buckle 54, the inside of 52 side wall of lower limit seat be equipped with it is upper buckle 54 cooperation lower buckles 55, it is described Two connecting terminals 4 are arranged between lower limit seat 52 and upper limit seat 53, and are symmetricly set on the two sides of limited post 51, under The evacuation lower handle hole 521 of terminal screw 42 and upper is respectively equipped on 53 two opposite side walls of limit base 52 and upper limit seat Handle hole 531 is respectively equipped with evacuation copper bolt 3 in lower limit seat 52 and upper limit seat 53 on the side wall of 3 side of copper bolt Lower escape groove 522 and upper escape groove 532, on the side wall of lower limit seat 52 and upper limit seat 53 far from 3 side of copper bolt point The lower wire slot (not shown) and upper metallic channel 533 of conducting wire She You not avoided.

The position-limit mechanism of the present embodiment by lower limit seat 52 and upper limit seat 53 respectively with the two sides up and down of connecting terminal 4 Cooperation, can not only pair of wire connection terminals 4 carry out more reliable limit, but also can pair of wire connection terminals 4 protected.In addition, Since the volume of connecting terminal 4 and copper bolt 3 is smaller, in assembly two connecting terminals 4 and two copper bolts 3 can first with Position-limit mechanism assembly is integrated, and is then assembled in shell together again, be can reduce the difficulty of assembly, improves the effect of production and processing Rate.

Further, it is respectively equipped with lower limit seat 52 and upper limit seat 53 in the lower casing 1 and upper casing 2 far from copper bolt 3 The lower baffle plate 12 and overhead gage 22 of side limit cooperation, and be equipped with upper limit seat 53 on the inside of the roof of upper casing 2 far from lower limit The upper rib 23 of 52 sides of seat limit cooperation is equipped with lower limit seat 52 in the inside bottom wall of lower casing 1 far from upper limit seat 53 1 The lower convex ribs 13 of lateral confinement position cooperation.It is limited respectively with lower limit seat 52 and upper limit seat 53 by lower convex ribs 13 and upper rib 23 Cooperation, can not only make between lower limit seat 52 and upper limit seat 53 and shell that there are certain intervals, prevent steam from entering down Between limit base 52 and upper limit seat 53, but also enough heat dissipations can be reserved in lower limit seat 52 and 53 surrounding of upper limit seat Space is radiated convenient for connecting terminal 4.

Further, heat release hole 524 and lower heat dissipation are respectively equipped on the lower limit seat 52 and the side wall of upper limit seat 53 Hole 534, upper heat release hole 524 is two and is oppositely arranged on the two sides of limited post 51, can further increase heat dissipation effect.

Crimping is equipped with far from the side of copper bolt 3 in connecting terminal 4 as shown in figure 3, corresponding in the upper casing 2 or lower casing 1 Device 61, wire pressing device 61 are equipped with tension disc 63, and the both ends of tension disc 63 pass through line pressing bolt 64 and the fixed company of wire pressing device 61 respectively It connects, is equipped with pressuring line groove 65 at the middle part of tension disc 63.

Further, the lower casing 1 and upper casing 2 are connected by attachment screw 71, and the middle part of lower casing 1 is equipped with connection cylindrical in shape Column 72 is equipped with link slot 73 in the top of connecting column 72 the middle part of upper casing 2 is corresponding, is equipped in link slot 73 and attachment screw The bottom side of 71 attaching nuts 74 being threadedly engaged, one end of attachment screw 71 and lower casing 1, which limits, to be cooperated, attachment screw 71 it is another End is reached in link slot 73 and is connect with attaching nut 74 from passing through in connecting column 72.

A kind of specific embodiment of connecting terminal 4 as show Fig. 4-5, the integrated molding of iron frame 41 bend, wrap The left plate 411 and right side plate 412 being oppositely arranged are included, and the bottom plate being connected between 412 one end of left plate 411 and right side plate 410, it is equipped with the lower roof plate 413 being oppositely arranged with bottom plate 410 in the other end of left plate 411, is set in the other end of right side plate 412 Have and be layered in the upper plate 414 that lower roof plate 413 is closed far from 410 side of bottom plate, is equipped on lower roof plate 413 to upper plate 414 1 The screw boss 415 of side protrusion is equipped with the threaded hole 43 being threadedly engaged with terminal screw 42, in Shang Ding in screw boss 415 Plate 414 is equipped with the first escape port 416 of evacuation screw boss 415.Iron frame 41 passes through lower roof plate 413 and 414 layers of upper plate Folded setting, and screw boss 415 and terminal screw 42 are set on lower roof plate 413, iron frame can be improved using the confined space 41 structural strength avoids the problem that stripped thread occur when connecting with terminal screw 42.

Further, the side that the left plate 411 and right side plate 412 are connect with bottom plate 410 is respectively equipped with the second escape port 417。

Further, the copper bolt 3 is in long strip-board shape, and certain copper bolt 3 can also be using cylindrical or oblate cylindricality, all Belong to the protection scope of the utility model.

It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard To belong to the protection scope of the utility model.

Claims

1. a kind of plug, it is characterised in that: including shell, copper bolt (3) and connecting terminal (4), connecting terminal (4) includes into frame The iron frame (41) and terminal screw (42) of shape is equipped on the side wall of iron frame (41) and is threadedly engaged with terminal screw (42) Threaded hole (43), one end of copper bolt (3) reaches in iron frame (41) to be cooperated with terminal screw (42), copper bolt (3) it is another End stretches out shell and is used to cooperate with socket.

2. plug according to claim 1, it is characterised in that: the shell includes the lower casing (1) and upper casing being oppositely arranged (2), the lower slot (11) and upper slot (21) of evacuation copper bolt (3) are respectively equipped on the side wall of lower casing (1) and upper casing (2), The card slot (31) cooperated respectively with lower slot (11) and upper slot (21) limit there are two being set in the two sides of copper bolt (3), two Card slot (31) can be snapped into respectively in lower slot (11) and upper slot (21), and two card slot (31) two side walls is made to be against shell respectively The two sides of body sidewall.

3. plug according to claim 1, it is characterised in that: the connecting terminal (4) is in saddle type.

4. plug according to claim 1, it is characterised in that: including two copper bolts (3) and two respectively with two The connecting terminal (4) of copper bolt (3) one end fits, shell is interior to be equipped with the position-limit mechanism cooperated with two connecting terminals (4), limit Mechanism is equipped with and reaches the limited post (51) for limiting cooperation between two connecting terminals (4), and the wiring of two connecting terminals (4) Screw (42) is separately positioned on the side that two iron frames (41) are located remotely from each other, two iron frames (41) side close to each other point It is not against the two sides cooperation of limited post (51).

5. plug according to claim 4, it is characterised in that: the position-limit mechanism includes being oppositely arranged and being respectively fitted over two The lower limit seat (52) and upper limit seat (53) of a connecting terminal (4) two sides, the limited post (51) are arranged in upper limit seat (53) towards the side of lower limit seat (52), and it is equipped with upper buckle (54) in the side of limited post (51), in lower limit seat (52) The inside of side wall is equipped with the lower buckle (55) with upper buckle (54) cooperation, and two connecting terminals (4) are arranged in lower limit Between seat (52) and upper limit seat (53), and the two sides of limited post (51) are symmetricly set on, in lower limit seat (52) and upper limit The lower handle hole (521) and upper handle hole (531) of evacuation terminal screw (42) are respectively equipped on (53) two opposite side walls of seat, Evacuation copper bolt (3) is respectively equipped on the side wall of lower limit seat (52) and upper limit seat (53) close to copper bolt (3) side Lower escape groove (522) and upper escape groove (532), in lower limit seat (52) and upper limit seat (53) far from copper bolt (3) side The lower wire slot and upper metallic channel (533) of evacuation conducting wire are respectively equipped on side wall.

6. plug according to claim 4, it is characterised in that: the shell includes the lower casing (1) and upper casing being oppositely arranged (2), it is respectively equipped with lower limit seat (52) and upper limit seat (53) in lower casing (1) and upper casing (2) far from (3) one lateral confinement of copper bolt The lower baffle plate (12) and overhead gage (22) of position cooperation, and be equipped on the inside of the roof of upper casing (2) with upper limit seat (53) far from lower limit The upper rib (23) of position seat (52) side limit cooperation is equipped with lower limit seat (52) in the inside bottom wall of lower casing (1) far from upper The lower convex ribs (13) of limit base (53) side limit cooperation.

7. plug according to claim 6, it is characterised in that: the side wall of the lower limit seat (52) and upper limit seat (53) On be respectively equipped with heat release hole (524) and lower heat release hole (534), upper heat release hole (524) is two and is oppositely arranged on limited post (51) two sides.

8. plug according to claim 1, it is characterised in that: the iron frame (41) is integrally formed and bends, including The left plate (411) and right side plate (412) being oppositely arranged, and be connected between left plate (411) and right side plate (412) one end Bottom plate (410), the lower roof plate (413) that is oppositely arranged with bottom plate (410) is equipped in the other end of left plate (411), on right side The other end of plate (412), which is equipped with, is layered in the upper plate (414) that lower roof plate (413) are closed far from bottom plate (410) side, in lower roof plate (413) it is equipped with the screw boss (415) to upper plate (414) side protrusion, is equipped with and wiring spiral shell on screw boss (415) The threaded hole (43) that nail (42) is threadedly engaged is equipped with the first escape port of evacuation screw boss (415) on upper plate (414) (416)。

9. plug according to claim 8, it is characterised in that: the left plate (411) and right side plate (412) and bottom plate (410) side connected is respectively equipped with the second escape port (417).

10. plug according to claim 2, it is characterised in that: correspond in the upper casing (2) or lower casing (1) in terminals Sub (4) are equipped with wire pressing device (61) far from the side of copper bolt (3), and wire pressing device (61) is equipped with tension disc (63), tension disc (63) Both ends pass through line pressing bolt (64) respectively and be fixedly connected with wire pressing device (61), be equipped with pressuring line groove at the middle part of tension disc (63) (65)。