CN203562528U

CN203562528U - Connector used for photovoltaic inverter

Info

Publication number: CN203562528U
Application number: CN201320713637.6U
Authority: CN
Inventors: 罗会雄; 干倓; 候文宇
Original assignee: SUZHOU HARVEST TECHNOLOGY Co Ltd
Current assignee: SUZHOU INDUSTRIAL PARK EXCEEDCONN TECHNOLOGY CO., LTD.
Priority date: 2013-11-13
Filing date: 2013-11-13
Publication date: 2014-04-23
Anticipated expiration: 2023-11-13

Abstract

The utility model discloses a connector used for a photovoltaic inverter. The connector comprises a male end and a female end. The male end and the female end are plugged and cooperated. An outgoing line of an inner core wire of a bus to be connected is plugged into a female end lead wire jack. The connector is characterized in that the outgoing line is formed by a metal crimping terminal which is connected with the inner core wire of the bus to be connected; the metal crimping terminal comprises a wire-grasping portion and a connection portion; the connection portion is inserted into the female end lead wire jack; the wire-grasping portion is formed by a pinch plate connected with a bottom of the connection portion, a bottom plate bearing the inner core wire of the bus to be connected and a hasp located on one side of the bottom plate; the pinch plate is provided with a jack which is plugged and cooperated with the hasp and the two are connected and annularly wrap the inner core wire of the bus to be connected. In the utility model, through the metal crimping terminal, the inner core wire of the bus to be connected is clamped and fixed; electrical connection is realized; and soundness and stability of the connector are increased.

Description

A kind of photovoltaic DC-to-AC converter connector

Technical field

The utility model relates to a kind of photovoltaic generating system field, relates in particular to a kind of photovoltaic DC-to-AC converter connector.

Background technology

In solar photovoltaic generation system, photovoltaic connector is one of important composition device of photovoltaic industry, by photovoltaic connector, each equipment is communicated with.In existing grid-connected inverters system, the electric energy that each photovoltaic cell converts to is converted to alternating current by inverter by direct current, through separated time and access in bus, by bus, access to (such as pressurizer on next photovoltaic apparatus again, stablize whole circuit voltage, make it meet the needs of power consumption equipment).Wherein, the connector that access uses during bus, generally includes male end and female end, and male end is arranged at a side of separated time, and female end is arranged in bus, and the cooperation that is connected of male end and female end completes being connected of separated time and bus.

Because female end is arranged on leader cable, by each circuit leading-out terminal in bus so that male end separated time and connect.In the prior art, generally from bus, go between and out need by peeling, be wound around lead-in wire on exposed heart yearn, last electricity consumption adhesive plaster encases the cable of the cable of exposed section and junction, completes lead-in wire, and female end is placed on lead-in wire.There is following shortcoming in aforesaid way:

1. the simple craft of leaning on is wound into lead-in wire in bus, then is wrapped up by electric adhesive plaster, and the leading wire stabilization degree of winding is inadequate, and fastness is poor, affects conduction property;

2. owing to generally including 2～5 cores in bus, or more, each root lead-in wire was wound around with manual with being connected all of bus, and operation is comparatively loaded down with trivial details, and production efficiency is low, difficult batch production in batches, and between adjacent core, also there is short circuit hidden danger, coefficient of safety is low.

Summary of the invention

The utility model object is to provide a kind of photovoltaic DC-to-AC converter connector, by using this structure, improves the steadiness connecting, and increases the service life.

For achieving the above object, the technical solution adopted in the utility model is: a kind of photovoltaic DC-to-AC converter connector, comprise male end and female end, described male end is pegged graft and is coordinated with female end, the lead-out wire of bus internal core wire to be connected is plugged in described female end wire jack, described lead-out wire consists of the metal crimping terminal being connected with described bus internal core wire to be connected, described metal crimping terminal comprises grabs line portion and connecting portion, described connecting portion is plugged in described female end wire jack, the described line portion of grabbing is by the buckle being connected with described connecting portion bottom, the hasp formation of carrying the base plate of described bus internal core wire to be connected and being positioned at base plate one side, described buckle is provided with the jack of pegging graft and coordinating with described hasp, both connect annular and are wrapped in outside described bus internal core wire to be connected.

In technique scheme, described female end comprises main body and base, described bottom part body is provided with the appearance line chamber corresponding with described bus internal core wire radical to be connected, in each appearance line chamber, offer the through hole being communicated with the wire jack that is arranged at female end top, the connecting portion of described metal crimping terminal is in this through hole is plugged in described wire jack; Described base is provided with minute wire casing coordinating with described appearance line chamber, and described base is connected through snap-in structure with main body.

In technique scheme, described base both sides are respectively equipped with at least one hole clipping, and corresponding hole clipping place, described main body both sides is provided with the plug-in unit coordinating with described hole clipping, and both connect and compose snap-in structure.

In technique scheme, the junction of described female end and bus is provided with inside and outside two-layer encapsulate layer, described internal layer encapsulate layer is wrapped in described bus internal core wire to be connected and described female end is held outside line chamber, and described outer encapsulate layer is wrapped in outside described internal layer encapsulate layer and described bus.

In technique scheme, both sides, jack on described buckle below are respectively equipped with a pair of elasticity location and grab, described hasp end be arranged at this elasticity location is grabbed and described buckle between.

In technique scheme, described base plate is provided with a plurality of anti-skidding projections of arranging perpendicular to described bus internal core wire bearing of trend to be connected.

In technique scheme, described connecting portion is provided with snap fit tabs, is provided with the step coordinating with this snap fit tabs in described wire jack, and the top of described connecting portion is elastic hole, pegs graft and coordinates with the contact pin in described male end.

Because technique scheme is used, the utility model compared with prior art has following advantages:

1. in the utility model, the lead-out wire of bus internal core wire to be connected consists of metal crimping terminal, buckle base plate and the hasp of institute's crimp type terminal surround annular, described bus internal core wire to be connected is wrapped in the annular that described crimp type terminal surrounds, compare with the structure of the wrap wire going between in the past, without lead-in wire is set, directly with metal terminal, bus internal core wire to be connected is wrapped, loaded down with trivial details winding process without lead-in wire, be difficult for getting loose, the fastness connecting is stronger, prevent that after getting loose, circuit is connected in series the problem that causes short circuit simultaneously, promoted security performance;

2. the junction of female end and bus is provided with inside and outside two-layer encapsulate layer, has promoted on the one hand the degree of being connected firmly of metal crimping terminal and bus internal core wire to be connected, also plays waterproof, anti-creeping effect simultaneously, plays the protective effect to circuit;

3. the utility model is simple in structure, is easy to realize.

Accompanying drawing explanation

Fig. 1 is the structural representation in the utility model embodiment mono-;

Fig. 2 is female end decomposition texture schematic diagram in the utility model embodiment mono-;

Fig. 3 is metal crimping terminal structural representation in the utility model embodiment mono-;

Fig. 4 is the left view of Fig. 3;

Fig. 5 is the perspective view of Fig. 3.

Wherein: 1, male end; 2, female end; 3, bus internal core wire to be connected; 4, wire jack; 5, connecting portion; 6, buckle; 7, base plate; 8, hasp; 9, jack; 10, grab elasticity location; 11, anti-skidding projection; 12, main body; 13, base; 14, hold line chamber; 15, through hole; 16, divide wire casing; 17, hole clipping; 18, metal crimping terminal; 19, bus; 20, internal layer encapsulate layer; 21, outer encapsulate layer; 22, snap fit tabs; 23, step; 24, elastic hole.

Embodiment

Below in conjunction with drawings and Examples, the utility model is further described:

Embodiment mono-: shown in Fig. 1～5, a kind of photovoltaic DC-to-AC converter connector, comprise male end 1 and female end 2, described male end 1 is pegged graft and is coordinated with female end 2, the lead-out wire of bus internal core wire 3 to be connected is plugged in described female end 2 wire jacks 4, described lead-out wire consists of the metal crimping terminal 18 being connected with described bus internal core wire 3 to be connected, described metal crimping terminal 18 comprises grabs line portion and connecting portion 5, described connecting portion 5 is plugged in described female end 2 wire jacks 4, the described line portion of grabbing is by the buckle 6 being connected with described connecting portion 5 bottoms, hasp 8 formations of carrying the base plate 7 of described bus internal core wire 3 to be connected and being positioned at base plate 7 one sides, described buckle 6 is provided with the jack 9 of pegging graft and coordinating with described hasp 8, jack 9 both sides, below on described buckle 6 are respectively equipped with a pair of elasticity location and grab 10, described hasp 8 ends be arranged at this to elasticity location grab 10 and described buckle 6 between, bus internal core wire 3 to be connected is wrapped in hasp 8 and buckle 6, and both are connected in annular, and on described base plate 7, be provided with 3 perpendicular to anti-skidding protruding 11 of described bus internal core wire 3 bearing of trends layouts to be connected, make metal crimping terminal 18 crimping bus internal core wire 3 to be connected more firm.

As shown in Figure 2, described female end 2 comprises main body 12 and base 13, described main body 12 bottoms are provided with the appearance line chamber 14 corresponding with described bus internal core wire 3 radicals to be connected, in each appearance line chamber 14, offer the through hole 15 being communicated with the wire jack 4 that is arranged at female end 2 tops, the connecting portion 5 of described metal crimping terminal 18 is in this through hole 15 is plugged in described wire jack 4; Described base 13 is provided with minute wire casing 16 coordinating with described appearance line chamber 14, described base 13 both sides are respectively equipped with two hole clippings 17, corresponding hole clipping 17 places, described main body 12 both sides are provided with the plug-in unit coordinating with described hole clipping 17, both connect and compose snap-in structure, and described base 13 is connected through snap-in structure with main body 12.Described female end 2 is provided with inside and outside two-layer encapsulate layer with the junction of bus 19, described internal layer encapsulate layer 20 is wrapped in described bus internal core wire 3 to be connected and described female end 2 is held outside line chamber 14, and described outer encapsulate layer 21 is wrapped in outside described internal layer encapsulate layer 20 and described bus 19.

As shown in Fig. 3～5, described connecting portion 5 is provided with snap fit tabs 22, is provided with the step 23 coordinating with this snap fit tabs 22 in described wire jack 4, and the top of described connecting portion 5 is elastic hole 24, pegs graft and coordinates with the contact pin in described male end 1.

In the present embodiment, described metal crimping terminal 18 is made of copper, conducting electricity very well of copper, simultaneously, utilize metal crimping terminal 18 and bus internal core wire 3 crimping to be connected to fix, and realize electrical communication, compare with the structure of utilizing lead-in wire to be wound in bus internal core wire 3 to be connected in the past, be difficult for getting loose, firmly performance is better.When connector is installed, step is as follows:

1, first to bus internal core wire 3 to be connected, need junction to carry out peeling;

2, with metal crimping terminal 18, corresponding respectively bus internal core wire 3 peelings place to be connected are fixed;

3, the bus internal core wire 3 to be connected of correspondence is connected in 13 minutes wire casings 16 of corresponding base;

4, the connecting portion of metal crimping terminal 18 5 is inserted to female end 2 wire jacks 4, meanwhile, the main body 12 of female end 2 and base 13 are through snap-in structure clamping;

5, carry out encapsulate, first carry out internal layer encapsulate, then carry out outer encapsulate outward at internal layer;

6,2 pairs of plug-in cards of male end 1 and female end connect and coordinate.

Claims

1. a photovoltaic DC-to-AC converter connector, comprise male end and female end, described male end is pegged graft and is coordinated with female end, the lead-out wire of bus internal core wire to be connected is plugged in described female end wire jack, it is characterized in that: described lead-out wire consists of the metal crimping terminal being connected with described bus internal core wire to be connected, described metal crimping terminal comprises grabs line portion and connecting portion, described connecting portion is plugged in described female end wire jack, the described line portion of grabbing is by the buckle being connected with described connecting portion bottom, the hasp formation of carrying the base plate of described bus internal core wire to be connected and being positioned at base plate one side, described buckle is provided with the jack of pegging graft and coordinating with described hasp, both connect annular and are wrapped in outside described bus internal core wire to be connected.

2. photovoltaic DC-to-AC converter connector according to claim 1, it is characterized in that: described female end comprises main body and base, described bottom part body is provided with the appearance line chamber corresponding with described bus internal core wire radical to be connected, in each appearance line chamber, offer the through hole being communicated with the wire jack that is arranged at female end top, the connecting portion of described metal crimping terminal is in this through hole is plugged in described wire jack; Described base is provided with minute wire casing coordinating with described appearance line chamber, and described base is connected through snap-in structure with main body.

3. photovoltaic DC-to-AC converter connector according to claim 2, is characterized in that: described base both sides are respectively equipped with at least one hole clipping, and corresponding hole clipping place, described main body both sides is provided with the plug-in unit coordinating with described hole clipping, and both connect and compose snap-in structure.

4. photovoltaic DC-to-AC converter connector according to claim 2, it is characterized in that: the junction of described female end and bus is provided with inside and outside two-layer encapsulate layer, described internal layer encapsulate layer is wrapped in described bus internal core wire to be connected and described female end is held outside line chamber, and described outer encapsulate layer is wrapped in outside described internal layer encapsulate layer and described bus.

5. photovoltaic DC-to-AC converter connector according to claim 1, is characterized in that: the both sides, jack below on described buckle are respectively equipped with a pair of elasticity location and grab, described hasp end be arranged at this elasticity location is grabbed and described buckle between.

6. photovoltaic DC-to-AC converter connector according to claim 1, is characterized in that: described base plate is provided with a plurality of anti-skidding projections of arranging perpendicular to described bus internal core wire bearing of trend to be connected.

7. photovoltaic DC-to-AC converter connector according to claim 1, it is characterized in that: described connecting portion is provided with snap fit tabs, in described wire jack, be provided with the step coordinating with this snap fit tabs, the top of described connecting portion is elastic hole, pegs graft and coordinates with the contact pin in described male end.